The Weird Route is the hidden “Side B” path in Deltarune that follows Noelle across multiple chapters, and in Chapter 5, it takes a sharp turn. Instead of expanding into a new Dark World, the route ends the chapter almost as soon as it begins, skipping the festival and the entire flower-themed Dark World you would normally explore.
Quick answer: You can only enter the Chapter 5 Weird Route if you completed the Weird Route in Chapter 4. When the chapter opens, force Kris out of bed, meet Noelle at the lake, and keep selecting “Proceed” while crossing the water until the screen reads “INSERT CHAPTER 7 SIDE B.” To cancel out and play the normal route instead, stop selecting “Proceed” once the screen starts fading to white.

Prerequisites for the Chapter 5 Weird Route
The route is a chain. Chapter 5 only continues it if you carried the Weird Route through Chapter 4, and Chapter 4 in turn requires completion data from the Chapter 2 Weird Route. There is no way to start fresh in Chapter 5.
| Chapter | What locks the route in |
|---|---|
| Chapter 2 | Freeze enemies with Noelle’s IceShock, ending with Berdly frozen in Cyber City |
| Chapter 4 | Direct Kris to force a thorn into Noelle’s hand at Noelle’s House |
| Chapter 5 | Continues automatically from Chapter 4 completion data |
If you did not complete those earlier steps, Chapter 5 plays the standard story with the festival in Hometown and the Field of Pink and Gold Dark World.
What changes at the start of Chapter 5
The opening is unmistakable. The chapter begins with the red dot on screen and Noelle slowly saying, “THANK YOU.” Kris sleeps in and misses the festival entirely.

The lake sequence and the route ending
The lake crossing is the trigger that closes out the chapter. As you go deeper into the water, the screen shakes harder, and the textbox border turns increasingly red. Your only option is to keep choosing “Proceed.”
You know it worked when the chapter generates a completion file for that slot, even though the route has no save points along the way. This is also where the route ends much earlier than usual — the entire Dark World segment is skipped.

Image credit: tobyfox(via YouTube/@MelonGod)
How to abort the Weird Route and play the normal chapter
The route can still be cancelled right up to the final moment in the water. The trick is timing, not menu choices.
After that, the normal route resumes from the point where Noelle leaves to check on Rudy, with only minor changes. The track ocean.ogg loops until you enter the Dark World, overlapping wind_highplace.ogg after you leave the lake area.

What the route means going forward
The “INSERT CHAPTER 7 SIDE B” message points the path squarely at a future chapter. Many players read it as the Weird Route being paused in Chapter 6 and resuming in Chapter 7, matching the on-screen prompt.
One practical detail to know: completing the route changes how the game labels your data. Affected save files are tagged with a “_b” at the end. Because of how the chain works, the only way to keep the route alive is to carry that completion data forward through each chapter rather than starting any chapter on a clean file.






